<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    
    <div id="app">
        <div v-bind:title="message">鼠标悬停查看信息</div>
    </div>

    <script src="https://cdn.jsdelivr.net/npm/vue"></script>
    <script>
        var app = new Vue({
            el: '#app',
            data: {
                message: '现在时间：' + new Date().toLocaleTimeString()
            }
        });
    </script>
</body>
</html>